github.com/abayer/test-infra@v0.0.5/mungegithub/mungers/matchers/event/finder.go (about)

     1  /*
     2  Copyright 2016 The Kubernetes Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package event
    18  
    19  import (
    20  	"time"
    21  
    22  	"github.com/google/go-github/github"
    23  )
    24  
    25  // FilteredEvents is a list of events
    26  type FilteredEvents []*github.IssueEvent
    27  
    28  // GetLast returns the last event in a series of events
    29  func (f FilteredEvents) GetLast() *github.IssueEvent {
    30  	if f.Empty() {
    31  		return nil
    32  	}
    33  	return f[len(f)-1]
    34  }
    35  
    36  // Empty Checks to see if the list of events is empty
    37  func (f FilteredEvents) Empty() bool {
    38  	return len(f) == 0
    39  }
    40  
    41  // FilterEvents will return the list of matching events
    42  func FilterEvents(events []*github.IssueEvent, matcher Matcher) FilteredEvents {
    43  	matches := FilteredEvents{}
    44  
    45  	for _, event := range events {
    46  		if matcher.Match(event) {
    47  			matches = append(matches, event)
    48  		}
    49  	}
    50  
    51  	return matches
    52  }
    53  
    54  // LastEvent returns the creation date of the last event that matches. Or deflt if there is no such event.
    55  func LastEvent(events []*github.IssueEvent, matcher Matcher, deflt *time.Time) *time.Time {
    56  	matches := FilterEvents(events, matcher)
    57  	if matches.Empty() {
    58  		return deflt
    59  	}
    60  	return matches.GetLast().CreatedAt
    61  }